Sound Uncovered

Sound Uncovered: An Interactive Book for the iPad – Exploratorium
Explore the surprising side of sound with Sound Uncovered, an award-winning interactive collection from the Exploratorium featuring auditory illusions, acoustic phenomena, and other things that go bump, beep, boom, and vroom.

Hear with your eyes, see with your ears, test your hearing, make and modify recordings—this app puts you at the center of the experiment.

Why do some noises seem louder at night? Are there secret messages in music played backward? How can Siri understand different accents? Why does the sound of gum chewing drive some people mad? Listen up and find answers to these questions and more as you take an auditory trip to the place where sound gets truly interesting: the space between your ears.